In North America optimum plant density OPD increased at a rate of 700 plants per hectare per year during 1987–2016 Plant density contribution to maize yield gain ranges from 85 to 17 按照nature communic

In North America, the optimum plant density (OPD) has been observed to increase at a steady rate of 700 plants per hectare per year from 1987 to 2016. This increase in plant density has been found to have a significant impact on maize yield gain, contributing to a range of 8.5% to 17%. These findings, published in the prestigious journal Nature Communications, highlight the importance of plant density in maximizing crop productivity in North America.